This is the 2443rd most frequent Japanese word.
一致
"一致" means "agreement," "consistency," or "unity."
In this context, "一致" denotes coincidence or concurrence of memories.
二人の記憶は不思議と一致していた。
Strangely, their memories coincided.
In this sentence, "一致" is used to signify agreement among opinions.
意見が一致したので、早速行動に移しました。
Since the opinions matched, we took immediate action.
Here, "一致" highlights the alignment or lack thereof between his statements and reality.